hkl @hkl@social.cleverlibre.org

Modelling extracellular stimulation of retinal ganglion cells: theoretical and practical aspects https://iopscience.iop.org/article/10.1088/1741-2552/acbf79 retinal implant, retinal prosthesis, #RGC

Look into my eye 👁‍🗨

Here is a really close look at a male brown headed cowbird. They are part of the family Icterid which includes blackbirds, grackles, and others. There have been several hanging around my yard lately.

"The Brown-headed Cowbird is a stocky blackbird with a fascinating approach to raising its young. Females forgo building nests and instead put all their energy into producing eggs, sometimes more than three dozen a summer. These they lay in the nests of other birds, abandoning their young to foster parents, usually at the expense of at least some of the host’s own chicks. Once confined to the open grasslands of middle North America, cowbirds have surged in numbers and range as humans built towns and cleared woods." - allaboutbirds.org

#photo #photography #photographer #photographylovers #birds #birdsofmastodon #birdwatching #BrownHeadedCowbird

Hands-free tech adds realistic sense of touch in extended reality https://news.rice.edu/news/2023/hands-free-tech-adds-realistic-sense-touch-extended-reality "Tactile bracelet and 'pseudo-haptic' visuals make virtual touch more believable"; #AR/#VR #haptics

Interesting what a change in tactics can do: Man beats machine at Go in human victory over AI https://www.ft.com/content/175e5314-a7f7-4741-a786-273219f433a1 "even years after AI appeared to have taken an unassailable lead over humans"; war-time deployment of #AI is not a guaranteed win.

19.8k
Lighter at 7600 frames per second

Meanwhile, back at the feeder:

Chipping sparrows and a house finch arrive for dinner.

“Strange to see how a good dinner and feasting reconciles everybody.” - Samuel Pepys, The Diary of Samuel Pepys

#photo #photography #photographer #birds #sparrow #finch

Flying bird.

Ohhh ... my head is dull this morning. This photo of a flying chipping sparrow is zoomed in way way too far. But it does have its appeal. It almost looks like a painting.

#birds

Developmental mechanisms underlying the evolution of human cortical circuits
https://doi.org/10.1038/s41583-023-00675-z

#neuroscienceday

What kind of intelligence is artificial intelligence?

The initial goal of AI was to create machines that think like humans. But that is not what happened at all.

"ChatGPT is basically auto-complete on steroids."

https://bigthink.com/13-8/what-kind-of-intelligence-is-ai

#ai #artificialintelligence #chatGPT #languagelearning

Image-dependence of the detectability of optogenetic stimulation in macaque inferotemporal cortex https://www.cell.com/current-biology/fulltext/S0960-9822(22)01921-2 #BCI #NeuroTech #optogenetics #neuroscience

More information in the Twitter thread https://twitter.com/RezaAzadi_/status/1625265187338227714 "optogenetic stimulation of high-level visual cortex results in distortions of the concurrent contents of vision"

"Transient receptor potential vanilloid 1 (TRPV1), a receptor for capsaicin and noxious heat, has been one of the most compelling targets for analgesics. However, systemic inhibition of TRPV1 is an impractical approach as a pain killer, since systemic antagonism induces hyperthermia. Two articles in this issue of the JCI report phenotypes from separate, rare missense mutations of human TRPV1."

#neuroscience #SensoryNeuroscience #trpv1

https://www.jci.org/articles/view/167338

Patterns in slow-motion splashes

'The value of large-scale studies of sleep and cognition'

https://cell.com/trends/neurosciences/fulltext/S0166-2236(23)00026-7

@TrendsNeuro Spotlight by Michael W.L. Chee & Adrian R. Willoughby,

discussing @antoinecoutrot et al., Nat Communications,
@hugospiers

https://nature.com/articles/s41467-022-34624-8

Stare at the crosshair in the middle and the faces will become incredibly distorted!
Celebrity face illusion - the coolest illusion ever
https://youtu.be/2PQ0ockV5Q4

‘Google’s riposte to ChatGPT has got off to an embarrassing start after its new artificial intelligence-powered chatbot gave a wrong answer in a promotional video, as investors wiped more than $100bn (£82bn) off the value of the search engine’s parent company, Alphabet.’ https://www.theguardian.com/technology/2023/feb/09/google-ai-chatbot-bard-error-sends-shares-plummeting-in-battle-with-microsoft #google #alphabet #ai #chatgpt #bard #AnExpensiveVideo

ChatGPT is a data privacy nightmare.
If you’ve ever posted online, you ought to be concerned.

The privacy risks that come attached to ChatGPT should sound a warning. And as consumers of a growing number of AI technologies, we should be extremely careful about what information we share with such tools.

🔗 https://theconversation.com/chatgpt-is-a-data-privacy-nightmare-if-youve-ever-posted-online-you-ought-to-be-concerned-199283

#chatGPT #ai #artificialintelligence #privacy #privacyalways #social #SocialMedia #sociology #socialimpact #sociologist @sociology #SocialsScience #technology

‘Friend or foe’ bacteria kill their algal hosts when coexisting is no longer beneficial. https://elifesciences.org/articles/84400?utm_source=mastodon&utm_medium=social&utm_campaign=organic_pr

Good morning, the empty bookshelves in Florida schools keep my head busy, since I'm a teacher with a library in my classroom in Berlin myself. That's a history lesson in front of our very eyes and exactly how fascism started in Germany. Books were banned and then burnt and everyone said, well, I can't do anything, I don't want to loose my job, I don't like it, but... Many little steps were made by many little people who didn't stand up against a new little rule. You know how this ends.

"Three years into the pandemic, the immune systems of the vast majority of humans have learnt to recognize SARS-CoV-2 through vaccination, infection or, in many cases, both. But just how quickly do these types of immunity fade?"

#Immunology #ImmunologicalMemory #COVID19 #COVID #vaccine

https://www.nature.com/articles/d41586-023-00124-y